Illuminating lamp for landscaping construction

The utility model discloses an illuminating lamp for landscaping construction, the illuminating lamp comprises an outer shell, an inner shell and a lamp body, the outer shell is formed by splicing two shell bodies which are symmetrically distributed, fixing seats are arranged in the two shell bodies, cavities are formed in the positions, located on the two sides of the fixing seats, in the shell bodies, and a plurality of air holes are uniformly formed in the outer walls of the fixing seats; the inner shell is provided with two cavities, the two cavities are communicated through air holes, the two shells are clamped and installed at the upper end and the lower end of the inner shell through fixing bases, the lamp body is embedded in one side of the inner shell and located in one cavity, and heat dissipation holes communicated with the other cavity are formed in the side, away from the lamp body, of the outer wall of the inner shell. According to the illuminating lamp, dust at the light emitting source can be